Improvement in middlings-purifiers



G. PARKER. Middlings` Pur PATENT OFFICE. i

GEORGE PARKER, OE POUGHKEErsiE, NEW YORK.

IMPROVEMENT IN MlDDLlNGS-PURIFIERS.

Speccation forming-part of Letters Patent No. 144,697, dated November1B, 1873;L application filed November 1, 1873.

To all whom it may concern:

Be it known that I, GEORGE PARKER, of Poughkeepsie, `in the county ofDutchess and State of New York, have invented a new and ImprovedMiddlings-Purier, Of which the following is a specification:

sectional elevation taken on the line :u of

Fig. 1, and Fig. 3 is a cross-section on the A represents a rectangularcase or chest, such as commonly is used for such machines, on the top ofwhich, near one end, is afunnelshaped receiver or hopper, B, which 1s tobe A placed directly under the floor on which the pile of middlingslies, the floor having a hole as large as the top of the funnel, orthereabout. In the Opening of the funnel at the lower end, which is atthe top Of the case, is a revolving conefeeder, C, nearly lling theopening. This cone, which is in practice made adjustable vertically toOpen the passage more `or less, is'provided with grooves in the sides,

which facilitate the feeding by scraping off the mass lying upon thecone regularly, and producing an even stream. It is revolved by gearingD at the lower end, connected out side of the case with the shaft E,which gears with the main driving-shaft F. Immediately under the cone isthe upper end of the upper sieve G, which is a flat shaking sieve hungby hooks H at the'upper end to the wall of the case, and at the lowerend resting on the cams I, which lift it and let it fall at eachrevolution. N At the lower end the coarse matters escape into the spaceJ, `to be blown out of the another sieve, if required; but as two ar'esuiii cientV for ordinary use they are deposited in the conveyer 0below, to be discharged at the spout P. The coarse light matters fromthe lower sieve also escape o' the end at the space J, and are blown outof the case. These are A ag ;aj n separated into two grades by theplates Q and R and the passage. S, which turn the heavier portionsdownward, while the lighter portions pass over and beyond. In practice,

the sieves will be suspended at the upper ends l so as to be shiftedhigher or lower tovary the of different qualities and conditions. Thecams are arranged on short shafts, T, extending through the case and'gearing at one end with the vertical shaft U, which is driven by theshaft E and drives the conveyer. is driven from the shaft F by a beltand conepulleys for varying the speed.

I do not claim the feeding-coneespecially, as that has already beensecured to me by a former patent; but v y g Having thus described Tinyinvention, I claim as new and desire to secure by Letters Patent- Thefunnel B, feeding-cone C, `two or more inclined shaking sieves, G M, oneor more return-chutes, L, cams I, fan K, conveyer O, and separators Q ItS, all combined and arranged in a middlings-puriiier, substantially asspecifled.

i VGE ORGE PARKER.

Witnesses:

JOHN G. PARKER,

LEwIs WARD.

inclination, as may be required for middlings Thefan` 4"

